Since the cold heading mold was opened, Guo Yonghe no longer wasted time, and immediately came to the office of the resident commissioner to find Zhao Hongtao.

"Brother Zhao, the cold heading mold has been opened on my side, and now I only need to prepare the raw materials and processing accessories, and then I can start to use the new process to trial produce special slender bolt samples!"

He opened a material purchase list to Zhao Hongtao, "These are the raw materials and auxiliary materials needed for the trial production of samples with new processes, can you arrange for someone from the company to send them to me first?" ”

Zhao Hongtao heard that the cold heading mold has been opened, and he was also very happy, he looked down at the material purchase list handed over to him by Guo Yonghe, and said: "Brother Guo, most of the above materials are easy to say, but the three materials of tetrahydroxyethylethylenediamine, alkylphenol ethoxylate, and undecanedioic acid are relatively unpopular materials, I don't know if the company's warehouse is still in stock, I have to call to confirm it first." ”

As he spoke, he picked up the phone and dialed the number of the warehouse of the city's Wujiaohua company.

Soon, the warehouse gave feedback, including tetrahydroxyethylethylenediamine, alkylphenol ethoxylate, and undecanedioic acid, which were three unpopular materials, and all the raw material warehouses on the material list listed by Guo Yonghe were in stock.

There was no recurrence of the embarrassing situation of the shortage of cold heading die alloy steel last time, Zhao Hongtao breathed a sigh of relief and asked the warehouse to immediately send all the above materials to the internal distribution factory according to the quantity listed on the material purchase list.

Although the amount of materials purchased by Guo Yonghe is not large, because there are more than 30 kinds of materials, it is already time to get off work at noon by the time Wujiaohua Company sends the materials over.

Guo Yonghe went to You Quanxi to ask for the key to the trial production workshop of the biotechnology department, and asked the delivery staff of Wujiaohua Company to directly unload all the materials to the trial production workshop. Then took advantage of the free time when no one was in the trial production workshop at noon, the compound phosphating solution and lubricant were prepared, and then the three 6.5 mm high-grade chromium-molybdenum nitride alloy steel bars sent by Wujiaohua Company were cut off into 125 mm long short bars on the lathe, and all of them were put into the composite phosphating liquid tank for phosphating treatment, and then returned to the office of the resident commissioner and went out to eat with Zhao Hongtao, who was waiting there.

Accompanied Zhao Hongtao to eat slowly, it was already half past two in the afternoon, and it was just time to go to work, so Guo Yonghe pulled Zhao Hongtao to the trial production workshop.

After arriving at the trial production workshop, Guo Yonghe found that Zhai Yuqiang was also waiting at the door of the workshop, and couldn't help laughing for a while.

"Section Chief Zhai, what are you doing here?" He asked.

"Comrade Xiao Guo,"

Zhai Yuqiang smiled shyly: "I thought that you were going to use a new process to try out special slender bolt samples in the afternoon?" So come over cheekily and learn advanced experience! ”

Zhai Yuqiang said so, what can Guo Yonghe do? Can he still drive Zhai Yuqiang away?

Fortunately, when he prepared the compound phosphating liquid and lubricant at noon, Zhai Yuqiang was no longer around, and there was no worry about leaking secrets.

"Section Chief Zhai, as long as you are not afraid of Director Luo criticizing you for not doing your job, you can watch it if you want to!"

Guo Yonghe smiled, walked to the front of the composite phosphate tank, scooped up a high-grade nitriding alloy short rod from the composite phosphate tank with a tool, checked the phosphating effect, and found that the process requirements had been met.

So I came to the cold heading machine tool of the trial production center, installed the cold heading mold that was opened, and then soaked the phosphated high-grade nitriding alloy short bar in the lubricant, and then put it into the mold, started the cold heading machine, only heard a "clang" sound, before and after a few seconds of work, the high-grade nitriding alloy short bar became a special slender bolt with a standard shape.

Without waiting for Guo Yonghe to do it, Zhai Yuqiang over there had already picked up a vernier caliper and measured this special slender bolt.

"How's it going, Section Chief Zhai, how's it going?"

Zhao Hongtao stretched his neck on the side and asked Zhai Yuqiang about the measurement results.

"Commissioner Zhao, from the point of view of processing accuracy, there is no problem with the sample, all the data is not only up to standard, but also reaches the level of excellent products!"

After Zhai Yuqiang measured all the parameters, he was also very happy and said: "It depends on the situation of the next destruction tensile test, if it can also meet the requirements, then Xiao Guo's new process will have no problem at all!" ”

"So what are you waiting for? Hurry up and carry out the destructive tensile test! ”

Zhao Hongtao said impatiently.

This matter is related to whether he can successfully climb to the position of deputy chief of the company's procurement department, so he can't help but be anxious.

"Hehe, Brother Zhao, don't be in a hurry first."

Guo Yonghe said with a smile: "When I have processed the remaining few special slender bolts, it is not too late to let Section Chief Zhai do the destructive tensile test!" ”

While speaking, Guo Yonghe fished out the remaining seventeen high-grade chromium-molybdenum nitride alloy steel short rods from the composite phosphate tank, put them into the lubricant tank and lubricated them, and immediately started the cold heading machine to process them.

Listening to a series of "clang" sounds from the cold heading machine, it took less than seven or eight minutes before and after, and the seventeen high-grade chromium-molybdenum nitride alloy steel short bars had become seventeen special slender bolts, which fell into the finished frame of the workpiece under the cold heading machine.

Zhai Yuqiang picked up the vernier caliper again and measured all seventeen special slender bolts, and all the bolts reached the standard of excellent products.

"Brother Guo,"

Zhao Hongtao heard the test data reported by Zhai Yuqiang, and urged on the side, "Now you can go to the destruction tensile test, right?" ”

"Well, let's go ahead and do it!"

Guo Yonghe nodded and said.

So Zhao Hongtao personally held the finished frame of the workpiece, and followed Zhai Yuqiang and Guo Yonghe to the high-strength bolt tensile failure testing machine in the Biotechnology Experimental Center.

Zhai Yuqiang casually took a special slender bolt from the finished frame of the workpiece, put it into the tensile failure testing machine, and then pressed the switch to start the tensile failure testing machine.

The number on the tensile force data display on the tensile failure testing machine kept increasing, and this special slender bolt did not move at first, then slowly began to deform, until the number on the data display rose to 2280 kgf, and the special slender bolt was snapped into two with a click.

"It works great!"

Zhao Hongtao and Zhai Yuqiang let out an exclamation at the same time.

You must know that the special slender bolts produced by the old process adopted by the internal assembly factory before the failure tensile test are only 2210 kgf. And now Guo Yonghe's new process to produce special slender bolts, the first product of the destruction tensile test data, in one fell swoop broke the highest record of the old process products, reaching 2280 kgforce, this effect is too shocking, right?